The Army has officially re-done their Physical Training to be "functional fitness" which is modeled off of crossfit. I don't see use of running all the time as we do. Of course its good a few times but to much is bad for some of us whose legs/knees can't take it lol.
But there needs to be a balance of cardio, weights, and other misc. My boss is a Level II crossfit instructor and kicks out ass but I think some of the crossfit work outs are lacking the cardio I need. So I do my own work outs after work
JDM-EDM-TT-V8-GANGSTA ALL THE WAY
"Ready for the Apocalypse"